NX7Seg

Arduino UNO

Multifunction Expansion Shield

3641bs 7 segment controller driven by 595 shift register

<h3 >Arduino ASCII Driver for 3641BS 4x7 segments </h3>Do not forget to include the ASCII Dictionary.This library helps you to write characters from an <a href="https://github.com/AlexisTM/ASCIIDic">ASCII Dictionary</a> on a 4x7 segments using shift registers (595). You write/update the <code >&#34;to write chars&#34;</code> via simplified methods.<ul ><li ><code >nx7seg::write(char[] chars, int chars_array)</code> Write chars</li></ul><ul ><li ><code >nx7seg::writeChar(char value, int where, bool point)</code> Write chars</li></ul><ul ><li ><code >nx7seg::writeInt(int value, int expected_length)</code> Write an int</li></ul><ul ><li ><code >nx7seg::writeFloat(float value, int expected_length)</code> Write a float</li></ul><ul ><li ><code >nx7seg::writeDigit(int value, int where, bool point)</code> Write a specific digit from the dictionary </li></ul><ul ><li ><code >nx7seg::clear()</code> Clear the display</li></ul>Once written, you can simply use <code >nx7seg::send()</code> to write data into the shift registers and <code >nx7seg::refresh(int time)</code> to continuously refresh the 7 segments during a time period.<h3 >Example</h3><pre ><code >#include &lt;ASCIIDic.h&gt; #include &lt;NX7Seg.h&gt; #define LATCH_DIO 4 #define CLK_DIO 7 #define DATA_DIO 8 nx7seg my4x7seg = nx7seg(LATCH_DIO,CLK_DIO,DATA_DIO); void setup () { /* Set DIO pins to outputs */ pinMode(LATCH_DIO,OUTPUT); pinMode(CLK_DIO,OUTPUT); pinMode(DATA_DIO,OUTPUT); } /* Main program */ void loop() { my4x7seg.writeInt(46); my4x7seg.refresh(1000); my4x7seg.write(&#34;abcd&#34;,4); my4x7seg.refresh(1000); my4x7seg.writeFloat(i); my4x7seg.refresh(1000); } </code></pre><h3 >Functions</h3><code >nx7seg nx7seg(int latch, int clock, int data, bool reverse = false)</code>Constructor : If you don't have a latch (not a 595 shift register), give a pin and don't use it. If the 7 segment is reverse, then gives the argument reverse to true.Latch could be named : RCLCKClock could be named : SCLK<code >void buffer(digit, data)</code>Write a byte in the digits buffer<code >void clear()</code>Clear the 7 segment buffer<code >void send()</code>Show the digit buffer on the 7 segment : Less than a millisecond. Use this if you are time dependant. Call it multiple times between time dependant steps to show the message.<code >byte cypher(char)</code>Convert a char into a byte coded for the 7 segments<code >void refresh(time = 500) // APPROXIMATIVE in ms</code>Show the digit buffer on the 7 segments during some time (in ms). It is approximative. It is a loop with delay(1), time times. Nothing can be done while showing numbers.<code >void write(char[], int sizeArray = 4)</code>Write a char[] into the buffer array, coded by cypher. Specify the size array.<code >void writeChar(char value, int digit, bool point = false);</code>Write a char into the buffer array, coded by cypher, at the digit wanted. If wanted, add a point.<code >void writeDigit(int value, int digit, bool point = false);</code>Write a number (0 to 10) into the buffer array, coded by cypher, at the digit wanted. If wanted, add a point.<code >void writeFloat(float value, int toWrite = 4)</code>Write the float value to 7 segment buffer. (refresh() or send() to show)<code >void writeInt(int value, int toWrite = 4)</code>Write the float value to 7 segment buffer. (refresh() or send() to show)<h3 >TODO</h3><ul ><li >Change the direction of the chars. Right to left instead of left to right for some 3641BS soldered differently.</li></ul><h3 >Credits</h3>Alexis Paques (@AlexisTM)

NX7Seg

Arduino ASCII Driver (library) for 3641 (four 7-segments) driven by 595 shift registers.